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vectorize_pnacl.h
#ifndef OPENMM_VECTORIZE_PNACL_H_
#define OPENMM_VECTORIZE_PNACL_H_
/* -------------------------------------------------------------------------- *
* OpenMM *
* -------------------------------------------------------------------------- *
* This is part of the OpenMM molecular simulation toolkit originating from *
* Simbios, the NIH National Center for Physics-Based Simulation of *
* Biological Structures at Stanford, funded under the NIH Roadmap for *
* Medical Research, grant U54 GM072970. See https://simtk.org. *
* *
* Portions copyright (c) 2013-2014 Stanford University and the Authors. *
* Authors: Peter Eastman *
* Contributors: *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the "Software"), *
* to deal in the Software without restriction, including without limitation *
* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
* and/or sell copies of the Software, and to permit persons to whom the *
* Software is furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included in *
* all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
* THE AUTHORS, CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE *
* USE OR OTHER DEALINGS IN THE SOFTWARE. *
* -------------------------------------------------------------------------- */
#include <cmath>
#include <cstdlib>
// This file defines classes and functions to simplify vectorizing code with portable SIMD vectors.
static bool isVec4Supported() {
return true;
}
typedef float __m128 __attribute__((vector_size(16), aligned(4)));
typedef int __m128i __attribute__((vector_size(16), aligned(4)));
class ivec4;
class fvec4 {
public:
__m128 val;
fvec4() {}
fvec4(float v) {
val = {v, v, v, v};
}
fvec4(float v1, float v2, float v3, float v4) {
val = {v1, v2, v3, v4};
}
fvec4(__m128 v) : val(v) {}
fvec4(const float* v) {
val = *((__m128*) v);
}
operator __m128() const {
return val;
}
float operator[](int i) const {
return val[i];
}
void store(float* v) const {
*((__m128*) v) = val;
}
fvec4 operator+(const fvec4& other) const {
return val+other;
}
fvec4 operator-(const fvec4& other) const {
return val-other;
}
fvec4 operator*(const fvec4& other) const {
return val*other;
}
fvec4 operator/(const fvec4& other) const {
return val/other;
}
void operator+=(const fvec4& other) {
val = val+other;
}
void operator-=(const fvec4& other) {
val = val-other;
}
void operator*=(const fvec4& other) {
val = val*other;
}
void operator/=(const fvec4& other) {
val = val/other;
}
fvec4 operator-() const {
return -val;
}
fvec4 operator&(const fvec4& other) const {
return (fvec4) (((__m128i)val)&((__m128i)other.val));
}
fvec4 operator|(const fvec4& other) const {
return (fvec4) (((__m128i)val)|((__m128i)other.val));
}
fvec4 operator==(const fvec4& other) const {
return (val==other.val);
}
fvec4 operator!=(const fvec4& other) const {
return (val!=other.val);
}
fvec4 operator>(const fvec4& other) const {
return (val>other.val);
}
fvec4 operator<(const fvec4& other) const {
return (val<other.val);
}
fvec4 operator>=(const fvec4& other) const {
return (val>=other.val);
}
fvec4 operator<=(const fvec4& other) const {
return (val<=other.val);
}
operator ivec4() const;
};
class ivec4 {
public:
__m128i val;
ivec4() {}
ivec4(int v) {
val = {v, v, v, v};
}
ivec4(int v1, int v2, int v3, int v4) {
val = {v1, v2, v3, v4};
}
ivec4(__m128i v) : val(v) {}
ivec4(const int* v) {
val = *((__m128*) v);
}
operator __m128i() const {
return val;
}
int operator[](int i) const {
return val[i];
}
void store(int* v) const {
*((__m128*) v) = val;
}
ivec4 operator+(const ivec4& other) const {
return val+other;
}
ivec4 operator-(const ivec4& other) const {
return val-other;
}
ivec4 operator*(const ivec4& other) const {
return val*other;
}
void operator+=(const ivec4& other) {
val = val+other;
}
void operator-=(const ivec4& other) {
val = val-other;
}
void operator*=(const ivec4& other) {
val = val*other;
}
ivec4 operator-() const {
return -val;
}
ivec4 operator&(const ivec4& other) const {
return val&other.val;
}
ivec4 operator|(const ivec4& other) const {
return val|other.val;
}
ivec4 operator==(const ivec4& other) const {
return (val==other.val);
}
ivec4 operator!=(const ivec4& other) const {
return (val!=other.val);
}
ivec4 operator>(const ivec4& other) const {
return (val>other.val);
}
ivec4 operator<(const ivec4& other) const {
return (val<other.val);
}
ivec4 operator>=(const ivec4& other) const {
return (val>=other.val);
}
ivec4 operator<=(const ivec4& other) const {
return (val<=other.val);
}
operator fvec4() const;
};
// Conversion operators.
inline fvec4::operator ivec4() const {
return __builtin_convertvector(val, __m128i);
}
inline ivec4::operator fvec4() const {
return __builtin_convertvector(val, __m128);
}
// Functions that operate on fvec4s.
static inline fvec4 floor(const fvec4& v) {
return fvec4(std::floor(v[0]), std::floor(v[1]), std::floor(v[2]), std::floor(v[3]));
}
static inline fvec4 ceil(const fvec4& v) {
return fvec4(std::ceil(v[0]), std::ceil(v[1]), std::ceil(v[2]), std::ceil(v[3]));
}
static inline fvec4 round(const fvec4& v) {
return fvec4(std::round(v[0]), std::round(v[1]), std::round(v[2]), std::round(v[3]));
}
static inline fvec4 min(const fvec4& v1, const fvec4& v2) {
return fvec4(std::min(v1[0], v2[0]), std::min(v1[1], v2[1]), std::min(v1[2], v2[2]), std::min(v1[3], v2[3]));
}
static inline fvec4 max(const fvec4& v1, const fvec4& v2) {
return fvec4(std::max(v1[0], v2[0]), std::max(v1[1], v2[1]), std::max(v1[2], v2[2]), std::max(v1[3], v2[3]));
}
static inline fvec4 abs(const fvec4& v) {
return fvec4(std::abs(v[0]), std::abs(v[1]), std::abs(v[2]), std::abs(v[3]));
}
static inline fvec4 sqrt(const fvec4& v) {
return fvec4(std::sqrt(v[0]), std::sqrt(v[1]), std::sqrt(v[2]), std::sqrt(v[3]));
}
static inline float dot3(const fvec4& v1, const fvec4& v2) {
fvec4 r = v1*v2;
return r[0]+r[1]+r[2];
}
static inline float dot4(const fvec4& v1, const fvec4& v2) {
fvec4 r = v1*v2;
return r[0]+r[1]+r[2]+r[3];
}
static inline fvec4 cross(const fvec4& v1, const fvec4& v2) {
__m128 temp = v2.val*__builtin_shufflevector(v1.val, v1.val, 2, 0, 1, 3) -
v1.val*__builtin_shufflevector(v2.val, v2.val, 2, 0, 1, 3);
return __builtin_shufflevector(temp, temp, 2, 0, 1, 3);
}
static inline void transpose(fvec4& v1, fvec4& v2, fvec4& v3, fvec4& v4) {
__m128 a1 = __builtin_shufflevector(v1.val, v2.val, 0, 4, 2, 6);
__m128 a2 = __builtin_shufflevector(v1.val, v2.val, 1, 5, 3, 7);
__m128 a3 = __builtin_shufflevector(v3.val, v4.val, 0, 4, 2, 6);
__m128 a4 = __builtin_shufflevector(v3.val, v4.val, 1, 5, 3, 7);
v1 = __builtin_shufflevector(a1, a3, 0, 1, 4, 5);
v2 = __builtin_shufflevector(a2, a4, 0, 1, 4, 5);
v3 = __builtin_shufflevector(a1, a3, 2, 3, 6, 7);
v4 = __builtin_shufflevector(a2, a4, 2, 3, 6, 7);
}
// Functions that operate on ivec4s.
static inline ivec4 min(const ivec4& v1, const ivec4& v2) {
return ivec4(std::min(v1[0], v2[0]), std::min(v1[1], v2[1]), std::min(v1[2], v2[2]), std::min(v1[3], v2[3]));
}
static inline ivec4 max(const ivec4& v1, const ivec4& v2) {
return ivec4(std::max(v1[0], v2[0]), std::max(v1[1], v2[1]), std::max(v1[2], v2[2]), std::max(v1[3], v2[3]));
}
static inline ivec4 abs(const ivec4& v) {
return ivec4(abs(v[0]), abs(v[1]), abs(v[2]), abs(v[3]));
}
static inline bool any(const __m128i& v) {
return (v[0] || v[1] || v[2] || v[3]);
}
// Mathematical operators involving a scalar and a vector.
static inline fvec4 operator+(float v1, const fvec4& v2) {
return fvec4(v1)+v2;
}
static inline fvec4 operator-(float v1, const fvec4& v2) {
return fvec4(v1)-v2;
}
static inline fvec4 operator*(float v1, const fvec4& v2) {
return fvec4(v1)*v2;
}
static inline fvec4 operator/(float v1, const fvec4& v2) {
return fvec4(v1)/v2;
}
// Operations for blending fvec4s based on an ivec4.
static inline fvec4 blend(const fvec4& v1, const fvec4& v2, const __m128i& mask) {
return fvec4(mask[0] ? v2[0] : v1[0], mask[1] ? v2[1] : v1[1], mask[2] ? v2[2] : v1[2], mask[3] ? v2[3] : v1[3]);
}
#endif /*OPENMM_VECTORIZE_PNACL_H_*/
fvec4::operator>=
fvec4 operator>=(const fvec4 &other) const
Definition: vectorize_pnacl.h:124
fvec4::operator+
fvec4 operator+(const fvec4 &other) const
Definition: vectorize_pnacl.h:79
ivec4
A four element vector of ints.
Definition: vectorize_neon.h:150
ivec4::operator==
ivec4 operator==(const ivec4 &other) const
Definition: vectorize_pnacl.h:187
ivec4::operator[]
int operator[](int i) const
Definition: vectorize_pnacl.h:154
fvec4::operator-
fvec4 operator-(const fvec4 &other) const
Definition: vectorize_pnacl.h:82
fvec4::val
__m128 val
Definition: vectorize_pnacl.h:57
fvec4::operator[]
float operator[](int i) const
Definition: vectorize_pnacl.h:73
ivec4::operator<
ivec4 operator<(const ivec4 &other) const
Definition: vectorize_pnacl.h:196
fvec4::operator<
fvec4 operator<(const fvec4 &other) const
Definition: vectorize_pnacl.h:121
fvec4::fvec4
fvec4(__m128 v)
Definition: vectorize_pnacl.h:66
fvec4::operator/=
void operator/=(const fvec4 &other)
Definition: vectorize_pnacl.h:100
fvec4::operator*=
void operator*=(const fvec4 &other)
Definition: vectorize_pnacl.h:97
fvec4::fvec4
fvec4(const float *v)
Definition: vectorize_pnacl.h:67
ivec4::operator-
ivec4 operator-(const ivec4 &other) const
Definition: vectorize_pnacl.h:163
ivec4::store
void store(int *v) const
Definition: vectorize_pnacl.h:157
ivec4::operator>=
ivec4 operator>=(const ivec4 &other) const
Definition: vectorize_pnacl.h:199
ivec4::ivec4
ivec4(__m128i v)
Definition: vectorize_pnacl.h:147
fvec4
A four element vector of floats.
Definition: vectorize_neon.h:56
ivec4::operator!=
ivec4 operator!=(const ivec4 &other) const
Definition: vectorize_pnacl.h:190
ivec4::ivec4
ivec4(int v1, int v2, int v3, int v4)
Definition: vectorize_pnacl.h:144
ivec4::ivec4
ivec4(const int *v)
Definition: vectorize_pnacl.h:148
fvec4::operator==
fvec4 operator==(const fvec4 &other) const
Definition: vectorize_pnacl.h:112
fvec4::operator<=
fvec4 operator<=(const fvec4 &other) const
Definition: vectorize_pnacl.h:127
fvec4::store
void store(float *v) const
Definition: vectorize_pnacl.h:76
ivec4::operator-=
void operator-=(const ivec4 &other)
Definition: vectorize_pnacl.h:172
ivec4::operator+=
void operator+=(const ivec4 &other)
Definition: vectorize_pnacl.h:169
ivec4::operator+
ivec4 operator+(const ivec4 &other) const
Definition: vectorize_pnacl.h:160
fvec4::fvec4
fvec4()
Definition: vectorize_pnacl.h:59
ivec4::operator-
ivec4 operator-() const
Definition: vectorize_pnacl.h:178
fvec4::operator/
fvec4 operator/(const fvec4 &other) const
Definition: vectorize_pnacl.h:88
ivec4::operator|
ivec4 operator|(const ivec4 &other) const
Definition: vectorize_pnacl.h:184
fvec4::operator!=
fvec4 operator!=(const fvec4 &other) const
Definition: vectorize_pnacl.h:115
ivec4::operator>
ivec4 operator>(const ivec4 &other) const
Definition: vectorize_pnacl.h:193
ivec4::ivec4
ivec4()
Definition: vectorize_pnacl.h:140
fvec4::operator-=
void operator-=(const fvec4 &other)
Definition: vectorize_pnacl.h:94
fvec4::operator&
fvec4 operator&(const fvec4 &other) const
Definition: vectorize_pnacl.h:106
fvec4::operator*
fvec4 operator*(const fvec4 &other) const
Definition: vectorize_pnacl.h:85
fvec4::fvec4
fvec4(float v1, float v2, float v3, float v4)
Definition: vectorize_pnacl.h:63
fvec4::operator|
fvec4 operator|(const fvec4 &other) const
Definition: vectorize_pnacl.h:109
fvec4::fvec4
fvec4(float v)
Definition: vectorize_pnacl.h:60
fvec4::operator>
fvec4 operator>(const fvec4 &other) const
Definition: vectorize_pnacl.h:118
fvec4::operator-
fvec4 operator-() const
Definition: vectorize_pnacl.h:103
fvec4::operator+=
void operator+=(const fvec4 &other)
Definition: vectorize_pnacl.h:91
ivec4::ivec4
ivec4(int v)
Definition: vectorize_pnacl.h:141
ivec4::operator*
ivec4 operator*(const ivec4 &other) const
Definition: vectorize_pnacl.h:166
ivec4::operator<=
ivec4 operator<=(const ivec4 &other) const
Definition: vectorize_pnacl.h:202
ivec4::operator&
ivec4 operator&(const ivec4 &other) const
Definition: vectorize_pnacl.h:181
ivec4::operator*=
void operator*=(const ivec4 &other)
Definition: vectorize_pnacl.h:175
ivec4::val
__m128i val
Definition: vectorize_pnacl.h:138